Joint for steel and other plates



A ril 8, 1924. Y 1,489,274

J. PETTY JOINT FOR STEEL AND OTHER PLATES Filed May 19. 1925 & J1]? jwm % ligfi cal tank the plates of which are secured toi of the T bars are inserted between adjacent of the United States construction of the the stems so that their serrated -faces 1ie Patented Apr. 8, 1924. A

UNITED STATES PATENT 1,489,274 v OFFICE.

JOHN PETTY, 0F LEBANON, PENNSYLVANIA.

JOINT FOR STEEL AND OTHER PLATE. application filed Kay 19, 1923. Serial No. 840,190.

To all whom .z't may concern: the plate edges are tightly gripped between Be it known that I, JOHN Pn'rrr, a citizen the T head and the clamping blocks.

of America, and resi Where, as shown in F1 2, the seams indent of Lebanon, county of Lebanon, State tersect each other, the en of the T may be of Pennsylvania, have invented a certain drawn down, as indicated at C so that the new and useful Improvement in Joints for T C lying at right angles will lie over it, Steel andOther Plates, of which the follow as shown in Fig. 2, and in all cases it is ading is a true and exact description, reference visable that the edges of the T indicated at being had to the accompanying drawings, H, H, should be caulked down against the which form a part thereof. 1 plate.

Myinvention relates to the construction of joints for holding adjacent plates of tanks or other structures togetherand has for its objectto provide a joint for this purpose of simple and efiicient construction and of such a character that it can readily be used in the erection of tanks and other structures in the field. The nature of my im-' provements will be best understood as described in connection with the drawings in which they are illustrated and in which t Figure 1' is a side elevation of a cylindri the adjacent plates are formed with grooves, one groove on the upper edge of the plate being indicatedflat b, and two grooves on the lower edge of the plate being indicated at b. In this construction the T head C is formed with projecting ledges C. which ex.- tend into the groove 6 and the, clamping blocks'D are formed with rectangular rojections or serrations indicated at D, wgich extend into the grooves b. The clam blocks D are also in this construction trated as having uiding ledges D between which the wedgesd l are driven and the efiect of which is to 'roperly align the clam ing blocks and we gesr I have illustrated in this modification a weld, shown at G, where the T heads and the seams intersect each other.

In the. modification illustrated in Fig. 5, in place of using a T bar. an H-shaped bar 'isused, having heads I and I and 8. connecting web or stem I. The head I is placed against the edges of adjacent plates B, B, and clamping plates d, d, are placed against gether by my mproved joint.-

Figure 2 is a cross sectional view taken as on the line 22 of Fig. 1. 1 Figure 3 is a view generally similar to Fig. 2, but showing amodification in the arts. Flgure 4 is a detail of the serrated clamping blockshown in Fig. 3.

Figure 5 is a sectional view of a modification of my joint, and a f Figure 6, still another sectional view showing another modification adapted for corner seams of rectangular tanks. the inner edges of the p ates and the parts Referring first to the construction shown drawn together to grip the plates by means in Figs. 1 and 2, A is the tank. B, B, etc, of wedges indicated at e, e, these wed s the. plates of which the tanks are made up. acting againstthe head I and the clamping (I. C, the flanges or T heads formed on stems blocks, as shown. C in which stems are formed perforations The modification illustrated in extending from c to c. D, D, etc., indicating is an adaptation of my invention clamping blocks the upper edges of which th are serrated, as indicated at D. E, E, etc., are wedges. .-t I

In putting the tank together the stems C for main e angular seams-of rectangular or an tanks.v The web-C is here formed wit an angular T head- C, C, adapted to rest upon the edges of the adjacent but angularl set plates B, B, and the clampin blocks D, edges of the plates B, B, and the T head 0 have their serrated edges, in icated at D, brought in contact with the edges of the arranged at right angles to each other so as plates. The serrated clamping blocks D are to rest firmly against the opposite sides of then inserted through the perforations in the plate edges. I The wedges E, E, for this construction are preferabl made of the curved formshown so that t ey can be more readily driveninto place against the blocksD,D.

Having-now described my invention, what against the opposite edges of the plates and, the wedges E are then inserted in the perfo-' rations of the stem and driven in against the clamping blocks Dwith the result that In the modification illustrated in Fig. 3,

Figure 6 lar 1. A plate joint comprising a stem adapt-V ed to extend between adjacent plates and havin a T head adapted to rest against the edges of said plates, serrated clamping 'blocks adapted to rest against the opposite edges of the plates and wedges adapted when driven in to act against the clamping blocks and draw the stem in the o posite direction so as to clamp the late ges between the T head and serrate blocks.

2. A plate joint comprising a T bar, the

head of which is adapted to rest on the edges of adjacent plates and the stem of which extends between the late edges, said stem having a series of per orations formed through it, serrated clamping blocks extending through perforations in the stem JOHN PETTY. 

